ASP.NET MVC 5：EmailAddress属性自定义错误消息 [英] ASP.NET MVC 5: EmailAddress attribute custom error message

问题描述

在注册表单中，我使用EmailAddress属性来验证用户电子邮件。

In register form I use EmailAddress attribute to validate user email.

public class RegisterViewModel
{
    [Required(ErrorMessage = "Pole wymagane")]
    [Display(Name = "Email")]
    [DataType(DataType.EmailAddress)]
    [EmailAddress]
    public string Email { get; set; }
}

如果验证失败，是否有机会显示电子邮件地址出了什么问题？例如糟糕，我看到您的电子邮件地址包含空格

Is there any chance to show what is wrong with email address if validation fails? For example 'oops, I see that your email address contains whitespace'

推荐答案

您必须为此添加另一个验证。使用 [RegularExpression]

You have to add another validation for that. Example using [RegularExpression]

public class RegisterViewModel
{
    [Required(ErrorMessage = "Pole wymagane")]
    [RegularExpression(@"^\S*$", ErrorMessage = "Email Address cannot have white spaces")]
    [Display(Name = "Email")]
    [DataType(DataType.EmailAddress)]
    [EmailAddress]
    public string Email { get; set; }
}

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